Greatest Common Factor of 420, 661, 206

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

• Greatest Common Factor of 420, 661, 206 by common division method
• Greatest Common Factor of 420, 661, 206 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 420

List of positive integer factors of 420 that divides 420 without a remainder.

1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420

Factors of 661

List of positive integer factors of 661 that divides 661 without a remainder.

1,661

Factors of 206

List of positive integer factors of 206 that divides 206 without a remainder.

1,2,103,206

Greatest Common Factor

We found the factors 420,661,206 . The biggest common factor number is the GCF number.
So the greatest common factor 420,661,206 is 1.

Here are some samples of GCF of two or more Numbers calculations.

• GCF of 859, 465, 107
• GCF of 594, 258, 387
• GCF of 221, 832, 974
• GCF of 217, 658, 444
• GCF of 459, 566, 914

1. What is the GCF of 420, 661, 206?

Answer: GCF of 420, 661, 206 is 1.

2. How to Find the GCF of 420, 661, 206

Answer: Greatest Common Factor(GCF) of 420, 661, 206 = 1

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(420, 661, 206) = 1.